Oops, it doesn't look like 'sled dog sled dog sled dog day' is a national day..

Other days

bonang

Bonang Day
nae nae

Nae Nae Day
law

Law Day
stress awareness

Stress Awareness Day
pumpkin

Pumpkin Day
ponytail

Ponytail Day
boba

Boba Day
hannah

Hannah Day
lisp

Lisp Day
boyfriend

Boyfriend Day